ISO 10425:2023 石油および天然ガス産業用のスチール ワイヤ ロープ — 最小要件と受け入れ条件 | ページ 2

Foreword

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This document was prepared by Technical Committee ISO/TC 105, Steel wire ropes.

This second edition cancels and replaces the first edition (ISO 10425:2003), which has been technically revised.

The main changes are as follows:

• tolerance, difference of diameter measurements of compacted strands and compacted (swaged) ropes have been added (see 4.3);
• the breaking forces of the more common classes, sizes and grades of compacted strands and compacted (swaged) ropes have been added to the breaking force tables (see Annex C);
• some sizes of well-measuring wire have been added to the diameter tables (see Annex E).

Introduction

In recognition of equipment already in use and originally designed to accommodate rope sizes (nominal rope diameters) based on “Imperial” units, some of the more common “converted SI unit” sizes have also been included.

In addition, and in recognition of equipment already in use and designed to operate with ropes having specific rope grades (e.g. IPS), based on “US” wire levels, these grades have also been included in order to give prominence to the required minimum values of breaking force associated with these grades and help to ensure that existing design safety levels are maintained.

Having due regard to size and breaking force for a particular rope class or construction, in some cases it is possible to safely substitute a US customary size and grade with one based solely on SI units and grade, and vice-versa. To assist in this process, this document gives a size range for each nominal rope diameter and equivalent minimum breaking forces (converted from US customary units) for comparison, although it is recommended that the equipment designer or rope manufacturer (or other competent person) is consulted prior to ordering a substitute rope.

1 Scope

This document specifies the minimum requirements and terms of acceptance for the manufacture and testing of steel wire ropes not exceeding rope grade 2160 for the petroleum and natural gas industries.

Typical applications include tubing lines, rod hanger lines, sand lines, cable-tool drilling and clean out lines, cable tool casing lines, rotary drilling lines, winch lines, horse head pumping unit lines, torpedo lines, mast‑raising lines, guideline tensioner lines, riser tensioner lines, mooring and anchor lines. Wire ropes for lifting slings and cranes, and wire for well-measuring and strand for well-servicing are also included.

The minimum breaking forces for the more common sizes, grades and constructions of stranded rope are given in tables. However, this document does not restrict itself to the classes covered by those tables. Other types can also conform with its requirements. The minimum breaking force values for these wire ropes are provided by the manufacturer.

For information only, other tables present the minimum breaking forces for large diameter stranded and spiral ropes (i.e. spiral strand and locked coil), while approximate nominal length masses for the more common stranded rope constructions and large diameter stranded and spiral ropes are also given.

2 Normative references

The following documents are referred to in the text in such a way that some or all of their content constitutes requirements of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.

3 Terms and definitions

For the purposes of this document, the terms and definitions given in ISO 17893 and ISO 7989-2 apply.

ISO and IEC maintain terminology databases for use in standardization at the following addresses:

Bibliography